baber/WOPTO huggingface dataset:
Patent GB-1202460-A (GB)
Title: Improvements in or relating to x-ray apparatus
IPC: H05G1/40
Filed: 1968-12-16
Abstract: 1,202,460. Exposure control. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 16 Dec., 1968 [19 Dec., 1967], No. 59632/68. Heading H2H. An X-ray apparatus comprises an X-ray tube and supply transformer in a common casing, the windings for supplying the filament current and the high voltage for the X-ray tube being connected to a common winding for connection to the mains supply voltage and the exposure time is controlled by a direct indication time switch fitted with a device such that the time switch is actuated to monitor the exposure time after the tube has been switched on according to the value of the tube current so as to ensure a sufficient intensity of radiation during exposure. As seen in the Figure, primary windings 2 are connected in circuit with mains 3 by pushbutton 6 and time switch contacts 10. Secondary windings 1 provide the high tension for the tube 4, the filament voltage for heating the cathode 15 being provided by a few turns 5 in line with the secondary winding. The apparatus is switched on by first setting pointer 8 of time switch 7 at the desired exposure time, the pointer being held in position by pawl 13 acting on toothed disc 11 which is fastened to shaft 12, and then pressing button 6. The discharge current produced in the tube flows through the secondary windings 1 and the series resistor 17. The voltage produced across 17 after a period of time reaches a value sufficient to exceed the cut-off voltage of Zener diode 18 which then becomes conductive and activates a control member 19 which operates a relay 20, which in turn energizes winding 21 of the magnetically controlled pawl 13. This releases the toothed disc 11 and enables the pointer 8 to return to its resting point under the action of spring 14, after the desired exposure time. The period between depressing button 6 and the operation of time switch 7 is varied by means of a tapping arm on the resistor 17. Preferably the voltage required across the resistor to actuate the time switch is obtained at a tube current which is at least 75% of the nominal rated value.
Patent GB-1269818-A (GB)
Title: Apparatus for measuring the dust content in gas media
Inventor: IZMAILOV GUMER AKHATOVICH
IPC: G01N27/60
Filed: 1969-12-15
Abstract: 1,269,818. Measuring dust content of gases. VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT AVTOMATIZATSII CHERNOI METALLURGII. Dec. 15, 1969, No. 61052/69. Heading G1N. The dust content of a gas is determined by charging the dust particles in an alternating electric field and receiving an A. C. signal initiated by the charged particles, the gas flow having been accelerated either before the charging or after the charging and before the receiving. In this manner, dust particles of different mass become displaced relative to each other in the flow direction and the phase of the amplified A. C. signal indicates the mean mass of the particles and its amplitude indicates the total surface area of the particles per unit volume of gas. In the apparatus shown in Fig. 2, gas is sucked in by a fan 24, the gas entering via a separator 6 which causes microscopic particles (i.e. greater than 10<SP>-5</SP> cm) to flow through tube 1 and submicroscopic particles to flow through tube 8. The gas in the respective tubes is then subjected to an alternating field at corona discharge electrodes 2, 3 and 13, 14 and the A.C. signal is derived at electrodes 4 and 17, which are connected in series to an amplifier 25 and phaseresponsive element 26. The threshold of the phase-responsive element is obtained from the source energizing the electrodes 2, 3, 13, 14. The output of the element 26 is connected to a converter 28 and recorder 29. In an alternative, Fig. 3 (not shown), the electrodes 2, 3, 13, 14 are connected in phase, the electrode 17 is connected to an amplifier (30) whose output is connected to the phase-responsive elements 26 and the electrode 4 is connected to the amplifier 25 whose output is also connected to the element 26. The gas flow may be accelerated by L-shaped entrances to the tubes 1, 8, by variation in the cross-section of the entrances of the tubes 1, 8, Fig. 4 (not shown), or a blade member positioned in the measuring electrodes 4, 17, Fig. 4 (not shown).
Patent GB-1249669-A (GB)
Title: Gated impulse generator
IPC: H03K3/28
Filed: 1968-12-30
Abstract: 1,249,669. Pulse generators. INSTYTUT BADAN JADROWYCH. 30 Dec., 1968 [28 Dec., 1967], No. 61777/68. Heading H3T. A gated pulse generator comprises a generating transistor 1 with a feedback loop between its collector base including a zener diode 6, a delay line 7 and a resistor 8, the collector of a gating transistor 9 also being connected to the base of transistor 1. A negative gating pulse applied to input capacitor 11 switches off transistor 9 and biases on transistor 1, causing the generation of output pulses as long as the gating pulse is present.
Patent GB-619619-A (GB)
IPC: B29C67/24
Abstract: Cellular structures are obtained by freezing a foam of an aqueous dispersion of rubber or the like, and then passing a coagulant from the exterior of the foam into the interstices of the frozen structure, thus causing the dispersion to coagulate irreversibly. The latex may be a natural or artificial dispersion of natural rubber, reclaimed rubber or synthetic rubber such as neoprene.  The frozen foam may be coagulated by immersion in a bath of ethyl alcohol, acetone, a solution of calcium chloride or calcium nitrate in water, or a coagulating electrolyte or acid, or by exposing to a coagulating gas such as sulphur dioxide, carbon dioxide, nitric oxide, hydrochloric acid or nitrogen or carbon dioxide saturated with alcohol vapour, or by pumping such a fluid through the foam.  The vulcanizing step may be effected in situ by means of a mixture of sulphuretted hydrogen and sulphur dioxide. The foam may be obtained by mechanical whipping or beating, chemical gas generation, or physical release of gas or vapour.  In an example, a natural rubber latex containing potassium oleate, zine oxide, sulphur, antioxidant, zinc dibutyl dithiocarbonate, and ammonium caseinate or a sodium salt of polymerized alkyl-aryl sulphonic acid, hydrogen peroxide and catalase is poured into an aluminium mould and allowed to expand. The mould was then cooled to - 30 DEG  C. and calcium chloride solution passed through at - 20 DEG  C.  After coagulation, the mould is transferred to a steam vulcanizer at 260 DEG  F.  Specification 553,513 is referred to.
Patent GB-737817-A (GB)
Abstract: 737,817. Hand knitting-pins. BOYE NEEDLE CO. March 23, 1953, No. 7906/53. Class 74 (2). A circular hand-knitting needle has aluminium or aluminium alloy end pins 6 connected by a flexible cord 11 of nylon. The cord is secured to the pins by being tubular so that it telescopically engages over a reduced roughened portion 18 of the pin, the two members then being compressed together. A short core 26 of nylon or similar plastic material is. engaged within a bore in the end of each pin and projects within the flexible tubular cord so as to stiffen the cord near to the joint between the members. Alternatively the flexible cord may be solid and engaged within a bore of each end pin.
Patent GB-2031973-A (GB)
Title: Improvements in or relating to a method of and apparatus for anchoring
IPC: E02D5/80
Filed: 1978-06-01
Abstract: A method of providing an anchor in earth or ground in which the resistance to extraction of the said installed anchor can, if shown to be necessary by proof loading or similar load testing, be increased by the subsequent installation of additional anchoring components to the anchor to provide an additional earth-pressure resisting area or areas within the earth mass or volume adjacent to the anchor, comprises driving an anchor head 2 and shaft 1 into the ground using a removable driving tube 10, subsequently successively driving anchor support and deflecting members 5 and corresponding deformable U- or L-shaped bars 3 along the shaft 1 so that the supports 5 deform the bars 3. Deformable sector plates 6 are preferably attached to the bars 3 at their leading edges. The number of components 3 and 5 driven along the shaft can be varied with the load encountered. <IMAGE>
Patent GB-2002349-A (GB)
Title: Prostane derivatives
IPC: C07C405/00
Filed: 1978-07-05
Abstract: The derivative have the formula I   <IMAGE> for example 1-acetoxy-16-(3- chlorophenoxy)-17,18,19,20- tetranor-4-cis, 13-trans-prostadien- 9 alpha ,11 alpha , 15-triol, wherein   <IMAGE> represents   <IMAGE> and X is an ethylene or trans-vinylene radical and possess high luteolytic activity.
Patent GB-2003294-A (GB)
Title: Optical fibre coupling
IPC: G02B6/42
Filed: 1978-08-03
Abstract: An optical coupling arrangement for plastics clad optical fibres is provided wherein a length of the fibre's cladding is removed at the fibre's end and a highly reflective metallic coating is substituted therefor. Fibres terminated in this manner may be spliced with conventional fibre couplers without fear of core separation caused by deformation of the plastics cladding when the fibre is under tensile stress. Two fibres having such metallic coatings on their cores may be spliced by merely placing the coated ends of the fibres in a metallic tube and soldering or gluing the ends to the tube. This approach can be used when coupling optic fibres to other optical components such as light sources and detectors.
Patent GB-2002920-A (GB)
Title: Optical waveguide
IPC: C03C25/10
Filed: 1978-08-08
Abstract: A plastics clad optical waveguide has perturbations which promote coupling to the guided modes having relatively low attenuation. Coupling to the guided modes having relatively high attenuation is suppressed. Substantially all of the power spectrum of the perturbations falls below a critical frequency which is the difference between the propagation constants for the highest order mode to be coupled and the next highest mode with relatively high attenuation. The effective numerical aperture of the waveguide is measured and this measurement is used to determine the highest mode to be coupled.
Patent GB-2028434-A (GB)
Title: Beverage Dispensing By Direct- gas Pressure
IPC: F04F1/06
Filed: 1978-08-16
Abstract: A beverage dispensing system has a container from which beverage is to be dispensed by admission thereto of a gaseous mixture of air (or nitrogen) and carbon dioxide from passage 31. Air under pressure is admitted to the system on demand, from compressor 7. Carbon dioxide from tank 11 communicates with the container through a normally closed diaphragm valve 14 which is open in response to differential pressure derived from the flow of air from compressor 7 through a restrictor 30. The spool 19 is biased by the pressure of carbon dioxide from tank 11 to a condition in which it normally closes communication between the carbon dioxide source and the container. The restrictor 30 and a restrictor 34 in the CO2 line control the ratio of air to CO2. <IMAGE>
Patent GB-2007375-A (GB)
Title: Checking play in motor-vehicle steering
IPC: G01B5/14
Filed: 1978-08-17
Abstract: An apparatus for the checking of the play of steering and front axle on motor vehicles comprises a respective plate (4) to engage tightly each front wheel (only one plate 4 shown), the plates being displaceable in a horizontal plane by a pneumatic piston and cylinder unit (10, 12) to pivot about a vertical axis (7) lying in the central radial plane of the wheel but outside the steering axis. The pneumatic unit is sufficiently strong for the wheels to be deflected through any play but not to overcome the steering resistance; the deflection is measured as an extent of the play. <IMAGE>
Patent GB-2004345-A (GB)
Title: Drive arrangement for transmitting drive between a pair of shafts
IPC: F16H7/08
Filed: 1978-08-17
Abstract: A drive arrangement for transmitting drive between a pair of shafts 11, 13 comprises a pair of toothed pulleys 10, 12 on the shafts respectively and an endless flexible member 14 connecting the pulleys. The flexible member is provided with tensionlng means for urging the runs of the member towards each other and the tensioning means 17, 18, 19 is movable about the axis of one of the pulleys thereby to vary the relative angular position of the shafts. <IMAGE>
Patent GB-2003952-A (GB)
Title: Improvements relating to forming machines for paper webs
IPC: D21F1/48
Filed: 1978-09-01
Abstract: The invention relates to papermaking and is designed to obviate, inter alia, the effect of "two- sidedness" in paper webs. This is achieved by dewatering the stock upwardly and downwardly simultaneously by using a top upwardly dewatering unit 22 in conjunction with traditional downwards drainage, and making the unit adjustable both in vertical and horizontal directions with reference to the stock-carrying wire 10. The top unit includes an upper wire 24 and a suction box 26 with a curved surface. <IMAGE>
Patent GB-2030521-A (GB)
Title: Writing implement
IPC: B43K21/00
Filed: 1978-09-11
Abstract: A magnetic writing implement comprises a tubular casing 20 with a writing unit 10 in a conical seal 22 at the end of the casing, a spare writing unit store tube 30 slideably engaged within the casing, an ejector 36 and a sliding push tube 31 connect with the front end and rear end of the store tube respectively for ejecting the writing unit in use, and a rear stopper 33 in the push tube prevents the spare writing units from slipping out of the tube. Each writing unit carries a writing point 11 at its front and includes a piece of magnet 14 at its rear. The ejector and the stopper contain magnets 38, 35 at their front ends. All the magnets have their like poles in the same direction, so the rear end of each writing unit presents a magnetic pole different from those at the front ends of the ejector and the stopper. <IMAGE>
Patent GB-2005318-A (GB)
Title: Self-lined fabric, and method and apparatus for making thereof
IPC: D04B21/14
Filed: 1978-10-02
Abstract: A self-lined fabric which can be produced on a stitch-through type machine comprises a flexible interstratum (2) (e.g., a layer of textile filling elements) on which a plurality of optional warp yarn textile elements (1) may be laid and which is laid on a flexible lining (3) the fabric being held together by (4) knitted through the components and forming a multiplicity of warpwise loop chains on the rear surface of the fabric being a chain stitch or, with elements 1, a half-tricot stitch. The fabric is produced on a stitch- through type machine in which means are provided for feeding the lining material to the work zone. Warp yarns 1 may move weftwise as well as warpwise to form a pattern. Interstratum 2 may be knitted, woven, fibrous batting, continuous sheeting or loose wefts. The lining 3 may be fibrous non woven, e.g. coated with acrylic foam, knitted, woven, foam sheeting or polymeric film. <IMAGE>
Patent GB-2008124-A (GB)
Title: Polymeric lubricant additives
IPC: C10M159/22
Filed: 1978-11-02
Abstract: The engine performance of low ash bases prepared by neutralising with an alkaline earth metal oxide or hydroxide a mixture of a sulphurised alkyl phenol containing at least 4 weight per cent sulphur in admixture with a Mannich base containing at least 2 weight per cent nitrogen and having a molecular weight of at least 600, is improved by incorporating in the reaction mixture at any time before completion of the neutralisation reaction a substituted succinic acid or anhydride in which the substituent is a large substantially aliphatic hydrocarbon radical having at least 20 carbon atoms, such as polyisobutene.
Patent GB-2023879-A (GB)
Title: Hoisting apparatus
IPC: B66C13/44
Filed: 1978-12-21
Abstract: Hoisting apparatus for moving an object (e.g. a basketball goal) between two positions comprises an AC motor 1 energisable through contactor 12 or 13 to move the object up or down, relays 7, 11 whose contacts 7a, 11a respectively energise contactor coils 12a 13a through respective limit switches 16, 17, a timer 14 and thermal relay 15, and further relays 2, 37, 3, 38 in a tenser 30 responsive to raising or lowering signals of different frequency produced by a remote optical command signal generator 20, the closing delay of timer 14 being sufficient to prevent energisation of coil 12a, 13a by transient closure of relays 2, 3 (e.g. due to vibration), sustained closure of relay 2 or 3 energises relay 7 or 11 through thyristor 6 or 10 to energise coil 12a or 13a after the timer delay and so close contactor 12 or 13 until switch 16 or 17 opens. In a modification, Figures 3 and 4 (not shown) using an ultrasonic command signal generator (200) the latter includes a switch (SW3) operable to deenergise the motor to stop the object during its movement. <IMAGE>
Patent GB-789416-A (GB)
Abstract: 789,416. Calculating-apparatus. BRUNSVIGAMASCHINENWERKEAKT.-GES. Jan. 20, 1956 [Feb. 15, 1955], No. 2075/56. Class 106 (1). In a calculating-machine comprising a totalizer R, a revolution counter U and a denominationally shiftable actuating mechanism A, each with a decimal point .indicator d and scale e, the rule for setting these indicators is that (e r ) = (eu) + (e a )À This rule applies for multiplication, Fig. 2 showing a setting at the commencement of a multiplication, but not for division commenced (see Fig. 3) with the actuating mechanism A and revolution counter actuator b in their leftmost positions. According to the invention, a second scale f is provided for the indicator d of the actuating mechanism, which is used instead of the scale e during division, and the digit markings of this scale are less than those of the scale e by the number of steps of the actuator b between its extreme positions, so that the above rule may be employed also for division. In Figs 2 and 3 the scale f, like the scales e, is mounted on the outer casing of the apparatus. As an alternative, the scale f may be carried by the actuating mechanism carriage S and be visible through the inspection window F for the actuating mechanism numeral wheels. In a further modification, allowing calculations to be commenced at intermediate positions of the actuator, the scale f is connected to the revolution counter actuator b for unison step-shifting. Specification 736,097 is referred to.
Patent GB-2042163-A (GB)
Title: Streak image analyser
IPC: G01J3/28
Filed: 1979-01-05
Abstract: In the analysis of a strip shaped image which moves across the output fluorescent screen of an image (streak) tube 2, the video signals from a T.V. camera 8 viewing the screen are applied to a gate 9 whereby a portion only of each line scan is applied to an integrator 10, and analog to digital converter 11, and the integrated signal stored at a respective location in a memory 12 on the basis of a particular location for each of the line scans. The stored signals may be displayed on an oscilloscope or pen recorder 13 or converted at 11 for display on monitor 16. Spectral analysis of light is performed by dispersing it along a slit analysed by the tube 2 and camera 8 and gating one or more sections of the line scan signals, each section representing a respective wavelength. <IMAGE>
Patent GB-2013590-A (GB)
Title: Wheel cover
IPC: B60B7/02
Filed: 1979-01-29
Abstract: A wheel cover comprises a disc like body (11) and a plurality of simulated spokes (20) arranged on the surface of said body. The body and the spokes are integrally formed by injection molding with a synthetic resin. The wheel cover other than an annular middle plate portion (14) on which the spokes are arranged, is colored or coated to be made metallic lustrous so that the wheel cover which is actually made of a synthetic resin looks as if it was made of metals, while the annular middle plate portion is colored by a different color so that the annular middle plate portion is inconspicuous. <IMAGE>
Patent GB-2012181-A (GB)
Title: Air free slurry
IPC: B01D19/00
Filed: 1979-02-09
Abstract: An air-free slurry, e.g. of ethyl silicate for moulding, is obtained either by mixing the slurry components under vacuum in an atmosphere of a condensible vapour, e.g. ethanol, and then increasing the pressure to condense and destroy the vapour bubbles formed in the slurry, or by mixing the slurry components at atmospheric pressure, incorporating therewith a substance with a very high vapour pressure, e.g. methylene dichloride or an aliphatic amine, reducing the pressure e.g. under an atmosphere of the substance in invertible chamber 1 before, during or after moulding in mould 9 so that the substance is vapourised and flushes air bubbles out of the slurry in vessel 10, and then increasing the pressure over the slurry, e.g. by heating, to condense and destroy the vapour bubbles in the slurry. Moulding may be effected during the increase in pressure at a stage between the stoppage of vapourisation and the condensing of the vapour bubbles. <IMAGE>
Patent GB-2015298-A (GB)
Title: Magnetic cartridges
IPC: H04R11/08
Filed: 1979-02-23
Abstract: A polepiece for a phonograph pick-up cartridge comprises a plurality of piece parts (42, 44) spaced relative to one another in a common plane with an overlay (46) superimposed on the piece parts to maintain them in predetermined positions. The piece parts (42, 44) are preferably made of a stack of laminations, the overlay (46) comprising one or more further laminations of non-magnetic material. The polepiece forms part of a magnetic core wherein a coil core wound with an electrical winding is interengaged with the polepiece limbs, for example by the interdigitating of fingers (50) on the respective elements. A pair of such magnetic cores are aligned at right-angles to define an elongate working gap channel to receive the magnet-armature of an armature-stylus assembly. <IMAGE>
Patent GB-2043048-A (GB)
Title: Pyrometric refractory material
IPC: C04B35/64
Filed: 1979-03-02
Abstract: A material for producing pyrometric refractory components contains the ingredients: alumina - 68 to 83%, titanium dioxide - 6 to 10%, and zirconium dioxide - 11 to 25%. The process for producing them comprises mixing of the starting ingredients, introduction of a plasticizing additive into the resulting mixture, moulding of the components, initial and final firing thereof.
Patent GB-2017644-A (GB)
Title: Blank for a folding box
IPC: B65D5/42
Filed: 1979-03-13
Abstract: A blank for a cardboard or like box e.g. for packaging reels of magnetic tape in containers includes two symmetrical portions (7, 8) which, after being folded about the line of symmetry (6), are glued together to define a hanger tab, a crease (3) acting as a hinge being provided between the side wall (4) and the hanger tab, so that the hanger tab can be moved about the edge of the box through an angle of 270 DEG . Apertures (14) facilitate hanging and a portion (13) may be torn out of the box along perforations (12), an aperture (11) facilitating such tearing. <IMAGE>
Patent GB-2021936-A (GB)
Title: Windscreen wipers
IPC: B60S1/40
Filed: 1979-05-22
Abstract: A windscreen wiper comprises a wiper blade and a wiper arm 1, mounted along side each other, the blade being carried in a frame 3 having side flanges 6 extending in a direction away from the blade and the arm having at its end a yoke 2, the side flanges 2a of which define a pivot on bearing 4, the arm being connected to the frame by means of a hinge pin 17 and a connector ferrule 8, the ferrule including a groove 10 by which it can be connected to pin 7 of the frame and a catch 14 for locking it in position on the frame. The hinge pin 17 passes through yoke 2 and, at least partially, through a bore 13 in the connector ferrule and has a head 18 which bears against one side flange 2a of the yoke and at least one neck which receives a free edge portion of a flange 6 of the frame when the connector ferrule is locked on the frame by the catch. <IMAGE>